Season 1 BBC Two Season 2008 BBC Two , 2008 - 2009 Season 2009 BBC Two , 2009 - 2010 Season 2010 BBC Two , 2010 - 2011 Season 2011 BBC Two , 2011 - 2012 Season 2012 BBC Two , 2012 - 2013 Season 2013 BBC Two , 2013 - 2014 Season 2014 BBC Two , 2014 - 2015 Season 2015 BBC Two , 2015 - 2016 Season 2016 BBC One , 2016 - 2017 Season 2017 BBC One , 2017 - 2018 Season 2018 BBC One , 2018 - 2019 Season 2019 BBC One , 2019 - 2020 Season 2020 BBC One , 2020 - 2021 Season 2021 BBC One , 2021 - 2022 Season 2022 BBC One , 2022 - 2023 Season 2023 BBC One , 2023 - 2024